* Replace icons with SF Symbols (IOS-232)
* Remove visibility-icon from Status (IOS-232)
* Use relative time formatter and switch position of timestamp/user (IOS-232)
* Set TimelineSelector-Button-Position (IOS-232)
Shouldn't switch now any longer. Also: Refactoring.
* Fix position of the Home-icon in TabBar (IOS-232)
TIL: Don't set an empty string, otherwise the position of the TabBarItem-icon breaks
Based heavily on the work for favorites.
Adds bookmarking functionality to the application. The status view has been updated to include a bookmark button that can bookmark/unbookmark a status. The profile page has been updated to include a button in the header to navigate to a page that lists your bookmarks.